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Comment by sschueller | Hacker News Reader

It will just alert the driver not actually limit. [1]

Many systems already exists like that. Even simple ones which you can set by hand to a specific speed and it will beep when you go over.

[1] ""The Commission wanted to make it compulsory that the car would automatically slow down to observe speed limits but we have secured a compromise where the system merely has to alert the driver that he or she is speeding," said Daniel Dalton, the Tory MEP for the West Midlands."

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> The speed limiter device, called intelligent speed assistance, or ISA, uses GPS data and sign recognition cameras to detect speed limits where the car is travelling, and then will sound a warning and automatically slow down the vehicle if it is exceeding the limit.

https://www.theguardian.com/world/2019/mar/27/all-new-uk-car...

My Volvo has sign recognition, and although it is quite good, it frequently gets it wrong. It will pick up signs on the back of lorries/buses, as well as signs for i.e. a neighborhood (5kmh) without subsequently picking up the fact that I have moved out of that area, and am now allowed 50kmh. If this erroneous behavior would translate to limited speed, I'd be extremely unhappy.

Yes, I recently replaced my car headunit with an android based systema and I now have Waze as my Sat Nav. It is configurable to notify you when you are speeding[1]. More amusingly it'll tell you how close you are to the average speed for a section of road covered by average speed cameras[2].

[1] https://support.google.com/waze/answer/6386895?hl=en

[2] https://support.google.com/waze/answer/7052887?hl=en&ref_top...

We have the parliamentary election coming up soon here in Finland, and the roadside is currently littered with ads that prominently feature candidates and their numbers, very cleanly printed and often on a nice solid colour background. There have been stories in the news that this has caused actual problems with the current speed limit detectors, especially when the numbers happen to be even tens.

So a warning-only approach definitely seems like the right way to go for now. Possibly with a manual option to either dismiss or accept the hard limit.

Recent BMWs (at least the last 5 years?) have a speed-limiter that will limit the car to a configurable speed, even mashing the pedal to the metal won't make it pass that limit. Very convenient for driving around speed cameras.

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